Hi Am having some CL problems
First sometimes when i used a command (say like dmesg -c) am not able to view the entire output - when i scroll right to the top - where the command and the output i am not able to get to the top. Why ? is there some setting i need to change to make the number of lines visible unlimited !! Specific Problems with dmesg *1 Am unable to pipe dmesg to a txt file output tried using this command dmesg -c > filename tried it with sudo as well but got a file with 0 bytes tried to add a dot txt extension same result file size 0 bytes *2 Does dmesg have to be under su mode only this is the message i get when i try is as normal used > [EMAIL PROTECTED]:~$ dmesg -c > klogctl: Operation not permitted This does not occur everytime nd i cannot figure a pattern to it. *3 After using dmesg -c i am unable on repeating the command i get no output. which means i either have to copy the dmesg to a file and read it / or worse reboot to see the whole thing again (after having an incomplete dmesg in the first place) Further if i have a specific device i am searching checking for if i unplug and replug it the dmesg gives me only the last output (for the unplugged and replugged device) I have tried removing the -c to clear buffer ring but i am still stuck with the latest unplugged and retarted lines and not the whole dmesg So whats going on I tried the -n (levels) and -s (bufsize) but i either get an error or nothing happens. see sample below: > [EMAIL PROTECTED]:~$ dmesg -s 32784 > [ 1143.048000] usb 1-1: USB disconnect, address 3 > [ 1143.048000] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0 > [ 1143.052000] pl2303 1-1:1.0: device disconnected > [ 1145.276000] usb 1-2: new full speed USB device using uhci_hcd and address 4 > [ 1145.428000] usb 1-2: configuration #1 chosen from 1 choice > [ 1145.432000] pl2303 1-2:1.0: pl2303 converter detected > [ 1145.432000] usb 1-2: pl2303 converter now attached to ttyUSB0 > [EMAIL PROTECTED]:~$ dmesg > [ 1143.048000] usb 1-1: USB disconnect, address 3 > [ 1143.048000] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0 > [ 1143.052000] pl2303 1-1:1.0: device disconnected > [ 1145.276000] usb 1-2: new full speed USB device using uhci_hcd and address 4 > [ 1145.428000] usb 1-2: configuration #1 chosen from 1 choice > [ 1145.432000] pl2303 1-2:1.0: pl2303 converter detected > [ 1145.432000] usb 1-2: pl2303 converter now attached to ttyUSB0 > [EMAIL PROTECTED]:~$ *** hoping to know whats happening and how to rectify it. thanks ram -- ubuntu-in mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-in
